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2.31ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG586354992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG586354992

Diamond specifications and retailer prices

From $237 USD
As of October 29, 2026
Save $2,003 USD (89%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,240 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.31ct lab-grown round diamond

This 2.31ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG586354992 or 586354992. Listed at 8 retailers as of October 29, 2026, with prices from $237 to $2,240, a $2,003 spread on the same certified stone. Brilliant Earth lists it at $2,240. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.31
Carat
G
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG586354992
Dimensions8.55 × 8.52 × 5.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.55 mm8.52 mm2.31 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG586354992
Side View
Table 57.0%Crown 34.3°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,240 USD|Low: $237 USD|High: $2,310 USD|Avg: $988 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$237 USD
Retailer 3$275 USD
Retailer 8$280 USD
Retailer 7$497 USD
Retailer 4$948 USD
Retailer 6$1,043 USD
Retailer 9$1,149 USD
Retailer 2$1,307 USD
Brilliant Earth$2,240 USD

16 data points across 9 retailers

8 retailers$237 USD to $2,240 USD

A
Cheapest Retailer
-
$237 USD
A
Retailer 2
-
$275 USD
View
A
Retailer 3
-
$280 USD
View
Final sale: no returns
B+
Retailer 4
-
$497 USD
View
B
Retailer 5
-
$948 USD
View
B+
Retailer 6
-
$1,043 USD
View
B
Retailer 7
-
$1,307 USD
£1,029 GBP
View
Most Expensive
B
Brilliant Earth
7584376Y · Oct 29
$2,240 USD
View
7 more retailers have this diamond
Prices start from $237 USDSave up to $2,003 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.31ct Round
$237 USD